Answers

They probably exist, but there are good reasons why that kind of design and material become rare once better alternatives were available. That looks heavy and lacking in water-resistance compared with a modern rucksack.

Many canvass backpacks are sold. The designer backpack in the photograph is not a very practical piece of camping gear. Duluth packs are built with large capacity for canoe camping. The 130-liter #4 Duluth pack costs $400 and can carry enough gear to camp for a month.